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| Raw Number | 231304 |
| Basic Format | 231-304 |
| NPA (Area Code) | 231 |
| NXX | 304 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | State | Region | Block Effective Date | Block Available Date |
|---|---|---|---|---|---|---|---|---|---|
| 231-304-0XXX | 991E | BANDWIDTH.COM CLEC, LLC - MI | BRUTUS | AS | 11/12/2025 | MI | MW | 12/11/2025 | |
| 231-304-1XXX | 543C | ONVOY, LLCV - MI | BRUTUS | AS | 12/08/2022 | MI | MW | 01/07/2023 | |
| 231-304-2XXX | 792K | CHARTER IP ENABLED SERVICES, LLC | BRUTUS | AS | 02/20/2025 | MI | MW | 05/25/2025 | |
| 231-304-3XXX | 624H | ONVOY SPECTRUM, LLC | BRUTUS | AS | 05/19/2021 | MI | MW | 06/18/2021 | |
| 231-304-4XXX | 543C | ONVOY, LLCV - MI | BRUTUS | AS | 10/29/2020 | MI | MW | 12/26/2020 | |
| 231-304-5XXX | 543C | ONVOY, LLCV - MI | BRUTUS | AS | 10/29/2020 | MI | MW | 12/26/2020 | |
| 231-304-6XXX | 543C | ONVOY, LLCV - MI | BRUTUS | AV | MI | MW | 12/28/2020 | ||
| 231-304-7XXX | 543C | ONVOY, LLCV - MI | BRUTUS | AV | MI | MW | 12/28/2020 | ||
| 231-304-8XXX | 543C | ONVOY, LLCV - MI | BRUTUS | AS | 02/02/2022 | MI | MW | 03/04/2022 | |
| 231-304-9XXX | 543C | ONVOY, LLCV - MI | BRUTUS | AS | 07/13/2023 | MI | MW | 08/12/2023 | |
| 231-304-XXXX | 543C | ONVOY, LLCV - MI | BRUTUS | AS | 10/26/2020 | MI |
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